Comcast and Time Warner Cable are sponsoring a dinner honoring FCC Commissioner Mignon Clyburn at a time when the agency is weighing whether to approve a multibillion-dollar merger between the two companies. […] The contributions come as FCC and Justice Department officials review the $45 billion megadeal, which would give Comcast control of about 30 percent of U.S. pay-TV subscribers and about 40 percent of the country’s broadband market. […] Comcast and Time Warner Cable, like the rest of the telecom industry, have robust lobbying operations in Washington and are working hard to win approval for their proposed merger. – Alex Byers,POLITICO